Environment-friendly alcohol group ceramic casting coating
A casting coating and environmental protection technology, applied in casting molding equipment, coatings, casting molds, etc., can solve the problems that zircon powder coatings are expensive and cannot meet the low-cost requirements of small and medium-sized foundries, and achieve good sintering peeling characteristics , enhanced peeling effect, and low raw material cost
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[0028] Example 1
[0029] An environmentally friendly alcohol-based ceramic casting coating composed of the following components by weight: 250 kg high alumina powder, 150 kg silica fume, 30 kg potassium feldspar powder, 175 kg pyrophyllite powder, 25 kg magnesium aluminum silicate, and rosin 10 kilograms, 5 kilograms of ethyl silicate, one kilogram of Tween 80, and 280 kilograms of ethanol.
[0030] Among them, the high alumina powder in AL 2 O 3 The mass percentage is greater than 80%, and the particle size is 325 mesh; SiO in the silicon powder 2 The mass percentage is greater than 98%, and the particle size is 325 mesh; the pyrophyllite powder contains AL 2 O 3 The mass percentage is greater than 20%, and the particle size is 200 mesh.
Example Embodiment
[0031] Example 2
[0032] An environmentally-friendly alcohol-based ceramic casting coating composed of the following components by weight: 270 kg high alumina powder, 120 kg silica fume, 32 kg potassium feldspar powder, 150 kg pyrophyllite powder, 22 kg magnesium aluminum silicate, and rosin 11 kg, 3 kg ethyl silicate, 2 kg Tween 80, 250 kg ethanol.
[0033] Among them, the high alumina powder in AL 2 O 3 The mass percentage is greater than 80%, and the particle size is 325 mesh; SiO in the silicon powder 2 The mass percentage is greater than 98%, and the particle size is 325 mesh; the pyrophyllite powder contains AL 2 O 3 The mass percentage is greater than 20%, and the particle size is 200 mesh.
Example Embodiment
[0034] Example 3
[0035] An environmentally-friendly alcohol-based ceramic casting coating composed of the following components by weight: 290 kg high alumina powder, 110 kg silica fume, 38 kg potassium feldspar powder, 190 kg pyrophyllite powder, 22 kg magnesium aluminum silicate, and rosin 9 kg, 5 kg ethyl silicate, 2 kg Tween 80, and 260 kg ethanol.
[0036] Among them, the high alumina powder in AL 2 O 3 The mass percentage is greater than 80%, and the particle size is 325 mesh; SiO in the silicon powder 2 The mass percentage is greater than 98%, and the particle size is 325 mesh; the pyrophyllite powder contains AL 2 O 3 The mass percentage is greater than 20%, and the particle size is 200 mesh.
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